Holman MK21013 is an outdoor cooling misting system designed to provide a cooling effect through the evaporation of fine water particles emitted by misting nozzles. It features 10mm diameter high-pressure tubing with compression fittings for easy assembly without clamps. The system can be expanded with additional Holman misting parts. The water supply can come from a standard household tap or garden hose. It's recommended to install a water filter to ensure clean water flow. An auto drain valve should be installed at the lowest point of the system to release pressure and drain water.
Holman MK21013 is an outdoor cooling misting system designed to provide a cooling effect through the evaporation of fine water particles emitted by misting nozzles. It features 10mm diameter high-pressure tubing with compression fittings for easy assembly without clamps. The system can be expanded with additional Holman misting parts. The water supply can come from a standard household tap or garden hose. It's recommended to install a water filter to ensure clean water flow. An auto drain valve should be installed at the lowest point of the system to release pressure and drain water.
Table of Contents
1. Outdoor Cooling Misting System..............p1
2. The Way It Works.......................................p1
3. Glossary......................................................p2
4. Misting System Assembly & Installation...p3
A. Plan Your Misting Installation...................p3
B. Water Supply.............................................p3
C. Positioning Misting Jets...........................p4
D. Installing The Fittings...............................p5
E. Installing The Misting System...............p6-7
F. Flushing The System................................p8
G. Water Filter...............................................p8
H. Auto Drain Valve.......................................p8
5. Maintenance Of Your Misting System.....p9
6. Troubleshooting.......................................p9
Outdoor Cooling Misting System
PLEASE READ INSTRUCTION MANUAL BEFORE USE
The Holman Misting system features 10mm diameter high pressure
tubing with “compression ttings” that are made to match this tubing.
The compression ttings t the pipe very precisely and simply push
over the pipe and are very easy to assemble. No clamps are required.
Please note that your misting system can be expanded with more
Holman misting parts. These are available at your Holman stockist.
The Way It Works
The misting system cools the air temperature by the evaporation of the
ne particles of water emitted by the misting nozzles. The process of
evaporation absorbs heat from the air and cools the area.
The misting nozzle emits very small amounts of water. It also breaks the
water into very small droplets or a “mist”.
In hot conditions, the small water droplets evaporate almost
instantaneously. In cooler or humid conditions the evaporation rate
may be slower.
Generally, you will not want to run the misting systems continuously. If
you do, the general environment may become damp and unpleasant.
The simple way to solve this problem is to use a Holman Misting Timer.
This timer can be programmed to suit the environmental conditions of
the day. You can easily adjust the “ON” time (in seconds) and the “OFF”
time (in seconds or minutes) and the misting system will automatically
turn on and o as you desire.
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Glossary Misting System Assembly & Installation
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Glossary Misting System Assembly & Installation
A. Plan Your Misting Installation
Take 5 minutes to work out how you will run the misting pipework and where you
should position the misting jets. Also, where your water source will come from
and where the supply pipeline will run.
The general idea is to position the jets to create a “mist curtain” surrounding your
outdoor entertainment area.
It is best to position the jets away from tables and chairs, and where people may
sit as the jets may at times drip water.
You do need to work out what you can attach the pipework to and plan a route
that makes attaching the pipework easy.
B. Water Supply
The misting system uses very little water volume. Each jet uses 3 litres an hour.
The misting system works best when you have a high pressure water supply. The
higher the pressure the ner the water droplet and the quicker and more eectively
the droplet evaporates and cools the area.
A normal household water supply is usually at an adequate pressure.
You can use a garden hose to bring water from a tap in the area to the start of
the misting pipework. If the hose is running in the sun, please ensure it is a good
quality hose that will be able to withstand the pressure when the water and hose
may get heated.
Of course, the misting pipe can be connected directly to a garden tap.
Only fresh tap water is suggested as bore or dam water may contain sediment
that will block the jets.
HINT: If you want to easily maintain the use of the garden tap for other uses,
install a Holman 2 way or 4 way manifold and t the misting system to one outlet.
C. Positioning Misting Jets
Factors to consider are: -
• Spacing of jets.
• Location of jets over tables or chairs.
• How many jets in a particular area.
There are no xed rules to how you position the jets.
The more jets you have, the more water you will use and potentially the cooler
the space will become.
However, too much water can be a problem because the air can become saturated
and even wet the people and objects in the space.
Holman recommend the following:
• Space jets between 600mm and 1 metre apart.
• Locate jets away from tables and sitting areas if possible.
• Try and create a curtain of mist at least on two sides of the area being cooled.
• Install a Holman misting timer. This will allow you to regulate the amount of water
entering a space by adjusting the “ON” times and “OFF” times of the timer. You
would have more “ON” time on a hot dry day than a cooler moister day.
The HOLMAN misting timer allows you to make these settings in seconds, where
other timers may not have this feature.
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Spacing 600mm to 1 metre for
eective coverage of chosen area
(Misting Jet) (Misting Jet)
(Misting Tube)
Misting System Assembly & Installation
D. Installing The Fittings
The Holman Misting System features “compression ttings”.
These ttings feature a compression ring that grips the tube and prevents it coming
loose or leaking water.
The higher the pressure the better the compression ttings hold onto the tube.
To ensure a good joint, the tube must be cut “square” and “burr free”.
The best way to achieve this result is to use the Holman misting tube cutter.
This ensures a clean square cut. It is also very quick to use.
(Holman Misting Tube Cutter sold separately - Product Code: MS20011)
Once the tube is cut the compression tting is very simply installed.
• Bring the 2 parts together, level and straight.
• Push the tube in while twisting the tting a little.
• The tube should enter the tting at least 10mm. Once tubing is installed it cannot
be removed from the elbow, tee or joiner.
5
(Fig. 8)
(Misting Jet)
Tube pushed 10mm
into each tting
(Fig. 7)
(Misting Jet) (Misting Jet)
(Misting Tube)
Misting System Assembly & Installation
E. Installing The Misting System
We recommend that each section of pipework is connected together before you
attempt to pin the pipework to walls or beams.
Start at the garden tap or water source point.
If you are using a garden hose to bring water to the area where your misting system
is, it is recommended that you install a sprinkler adaptor into the Misting Universal
tap adaptor. This leaves a male spigot “click on” point where your standard hose
connector will simply click on.
Run the misting tube to the position where you want your rst misting jet. Use
Holman Misting Tee or Elbow connectors to go around corners or split the pipe runs.
The Auto Drain Valve needs to be installed at the lowest point of the system.
Connect the Auto Drain Valve to a threaded Misting Tee.
6
Misting System Assembly & Installation
Tap
Auto Drain Valve
Misting Tees
with Nozzles
Misting Elbow End
Misting Tube
Curtain of Mist for most eective coverage.
(Illustration shows 5 Misting Tees and 1
Misting Elbow being used as an example of
a basic layout.
Further products to extend your misting
system are available at your local HOLMAN
stockist).
Hose Clamps
Elbow or Tee
Connector
Misting
Tee
Misting
Filter
Work out the spacing of the misting jets and cut the misting hose to length and
install the relevant misting tees. Finish each line with a misting elbow.
(3 x Misting Elbows are included in this System to enable installation of a single or
multiple line misting solution. More Misting Elbows are available at your nearest
HOLMAN stockist Product Code: MS20003)
Use the hose clamps to attach the misting hose to the wall or beams.
The Holman hose clamps use a very strong masonry nail that should not bend
when you hammer it into timber or masonry.
HINT 1: Run pipework along mortar joints in brickwork.
Hammer the hose clamps into the brickwork for a reliable result.
HINT 2: Use a hose clamp on each side of a misting tee to ensure the tee is rmly
positioned and misting in the correct direction.
HINT 3: If hammering into metal, the correct nails will need to be purchased.
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Position Hose Clamps
7-8cm away from
Nozzle
(Hose Clamp) (Hose Clamp)
(Misting Jet)
Misting System Assembly & Installation
F. Flushing The System
Perhaps the most important part of the installation process is to properly ush
the system.
Remove ALL JETS and then connect the water and run for 4 or 5 minutes. This will
ensure that all dirt and pipe swarf is ushed from the system. If this is not done,
the brass jets will clog up and then they will not work correctly.
The hole size in the brass jets is extremely small. It is like this to ensure that the
water particle is very small – like a mist.
G. Water Filter
Because the principle of evaporative cooling relies on very small volumes of water
evaporating and absorbing the ambient heat, it is critical that the water entering
the misting system is very clean and free of all particles that will not pass through
the very small hole in the misting jet.
It is highly recommended that the lter be installed immediately after the connection
to the water source.
From time to time it may be necessary to clean the lter. This is best done by using
cleaning solution like vinegar. This is available at your hardware store.
This will not only assist clean solid particles away, but it will dissolve calcium and
iron deposits that build up as water evaporates in the lter (and jets).
H. Auto Drain Valve
This is a very important component in your misting system.
This should be installed at a low point in the system.
This valve will automatically release the pressure in the line and them “dump” the
water in the misting hose “above” the level of the auto drain valve when the water
is turned o.
It is important to note that the Auto Drain Valve should be positioned
where water can run freely. ie. Into a drain or garden area.
This is important to stop the misting jets from “dripping” and “dribbling” and
also stops the build up in precipitated salts (like calcium and iron) from the water.
8
Misting System Assembly & Installation
Do not remove the end of Auto Drain Valve unless blocked. There is a very small
ball inside and if opened the ball will fall out.
5. Maintenance Of Your Misting System
Please use these hints to keep your misting system operational and prevent
unnecessary clogging of the misting jets: -
1)
Drain Water from your System
When your system is not in use, drain all water from your system. If you use an
automatic draining valve, this job will happen automatically.
2)
Clean Nozzles
Periodically clean all nozzles by soaking them in a solution of vinegar, or similar
calcium and iron remover.
3)
Flush System
Periodically remove all nozzles and ush the system by running water through it
for 4 or 5 minutes.
4)
Clean Filter
Periodically clean the lter by soaking in a solution of vinegar to remove calcium
and iron build up.
6. Troubleshooting
1)
Clean Nozzles
If nozzles are “dripping” or not “misting” properly, they must be removed and
soaked in cleaning solution like vinegar. If this fails to clean the jet, it is highly
recommended to purchase replacement jets and replace all jets as required.
9
Maintenance
Head Office/Service
11 Walters Drive, Osborne Park WA 6017
Tel: +61 8 9416 9999 Fax: +61 8 9416 9920
www.holmanindustries.com.au
Copyright © 2019 Holman Industries
We really appreciate having you as a customer, and would like to say
thank you for choosing us. Should you have any questions about this
product or its operation please call customer service on 1300 716 188.
We hope you are happy with our product and if you have a moment to
leave a review, we would like to hear your feedback on the Product Review
website. www.productreview.com.au then search for our product name
Thanks for being a
#SMARTGARDENER
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Holman MK21013 is an outdoor cooling misting system designed to provide a cooling effect through the evaporation of fine water particles emitted by misting nozzles. It features 10mm diameter high-pressure tubing with compression fittings for easy assembly without clamps. The system can be expanded with additional Holman misting parts. The water supply can come from a standard household tap or garden hose. It's recommended to install a water filter to ensure clean water flow. An auto drain valve should be installed at the lowest point of the system to release pressure and drain water.
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